Synthesis of the Zn2SiO4∶Eu3+ Red Phosphor by Sol-Gel Method
WU Yang, WANG Yong-sheng*, HE Da-wei*, FU Ming, CHEN Zhen-min, LI Yue, MIAO Feng
Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
Abstract：Spherical Zn2SiO4∶Eu3+ phosphors were prepared by a Pechini sol-gel process. The microstructure and luminescent properties of the obtained Zn2SiO4∶Eu3+ particles were well characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and photoluminescence (PL) spectra. The results of SEM demonstrated that the Zn2SiO4∶Eu3+ particles with a diameter about 1～3 μm, which have spherical morphology, emitted an intensive red light emission at 613 nm under excitation at 395 nm. Besides, the effects of the Eu3+ concentration, annealing temperature and charge compensators of Li+ ions on the PL emission intensities were investigated in detail. The investigation showed that the PL intensity increased with the annealing temperature increasing. At the same time, the PL intensity firstly increased and then decreased with the Eu3+ and Li+ concentration increasing.
邬 洋，王永生*，何大伟*，富 鸣，陈震旻，李 玥，苗 锋 . 溶胶-凝胶法制备Zn2SiO4∶Eu3+红色荧光粉 [J]. 光谱学与光谱分析, 2011, 31(04): 890-893.
WU Yang, WANG Yong-sheng*, HE Da-wei*, FU Ming, CHEN Zhen-min, LI Yue, MIAO Feng . Synthesis of the Zn2SiO4∶Eu3+ Red Phosphor by Sol-Gel Method . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(04): 890-893.
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